Three‐dimensional prototyping for procedural simulation of transcatheter mitral valve replacement in patients with mitral annular calcification

• DOI: 10.1002/ccd.27488
• Publication Date: 2018-01-23T06:20:39Z
• Authors: Abdallah El Sabbagh; Mackram F. Eleid; Jane M. Matsumoto; Nandan S. Anavekar; Mohammed A. Al‐Hijji; Sameh M. Said; Vuyisile T. Nkomo; David R. Holmes; Charanjit S. Rihal; Thomas A. Foley
• Keywords: Mitral valve replacement; Cardiac catheterization

Abstract Introduction Three‐dimensional (3D) prototyping is a novel technology which can be used to plan and guide complex procedures such as transcatheter mitral valve replacement (TMVR). Methods Eight patients with severe annular calcification (MAC) underwent TMVR. 3D digital models balloon expandable valves were created from pre‐procedure CT scans using dedicated software. Five printed. These assess prosthesis sizing, anchoring, expansion, paravalvular gaps, left ventricular outflow tract (LVOT) obstruction, other potential procedure pitfalls. Results of then compared post procedural imaging determine how closely the achieved result mirrored modeled result. simulated LVOT obstruction in one patient who developed it another alcohol septal ablation prior Valve sizing correlated actual placed size six out eight more than mild leak (PVL) was two three had it. Patients mismatch between their post‐procedural ones that anterior leaflet resection could have altered PVL simulation. printed model latter allowed modification simulate surgical able estimate location after inserting stent into physical model. Conclusion TMVR for MAC feasible simulating apposition, PVL, obstruction.